Half to bailey sargent and john h



(No Model.) 2 Sheets-Sheet 1 G. 0. TITGOMB.

STEAM VALVE.

No. 367,327. Patented July 26, 1887.

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UNITED STATES PATENT OFFICE.

' HALF TO BAILEY SARGENT PLACE. I

AND JOHN H. CLEARY, BOTH OF SAME STEAM-VALVE.

SPECIFICATION forming part of Letters Patept No. 367,327, dated July 26, 1887.

Application filed-June 24, 1886. Serial No. 206,078. (So model.)

To all whom it may concern.-

Be it known that I, GEORGE O. TITOOMB, of Merrimac, county of Essex, and State of Massachusetts, have invented an Improvement in Steam-Valves, of which the following description, in connection .with t-heaccompanying drawings, is a specification, like letters on the drawings representing like parts.

' This invention in steam-valves has for its object to improve the construction of the same, whereby the usual stnfling-box through which the valve-stem is extended may be dispensed with and water be prevented from lodging in the valve.

be used withsteam-radiators or in circulationpipes to prevent snapping or thumping therein, the said snapping or thumping being largely due to lodginent of water in the valves.

-To obviate the lodgment of water in the valve case or shell, which results in thumping and hammering, I have so located the seat for the valve-plate controlling the passage of steam through or into the radiator that the z 5 back of the said valve-plate when closed lies flush with the interior of the horizontal pipe in operative connection with the valve case or shell. I also dispense with the usual stuffingbox by providing the valve stand or sleeve with a seat, with which the back of the valveplate cooperates when thevalve is opened, the said valve-plate being thus adapted to be seated both when the valve is opened and closed. The back of the valve-plate when the valve is opened isimmediately brought against the seat on the stand or sleeve bya spring applied to the valve-stem, the said valve-plate being firmly seated when closed by a threaded collar on the stem engaging threads at the in- 40 side of the valve stand or sleeve through which the valve is extended.

The particular features in which my invention consists will be pointed out in the claims at the end of this specification.

Figure 1 shows in partial elevation and section a valve constructed in accordance with my invention, the same being shown-as connected to a radiator, only a portion of which is shown in section, the valve-stem being in 5 elevation for the greater part of its length;

My improved valve is especially adapted to and Fig. 2 is a modification to be referred to.

The valve shell or case A, herein shown as having threaded arms a a at right angles to each other, and into which are screwed pipes a a respectively, may, in order to more 5 clearly illustrate my invention, be considered the case of the feed or stem valve of a radiator, It, the pipe a forming the steam-inlet and the pipe at the steam-outlet for the said valve shell or case.

The valve shell or case A has an arm, 1), herein shown as threaded on its inside, to be engaged by threads on a valve stand or sleeve, 1), provided, as shown, with a cap, 11*, screwed thereon. The cap I) and bottom of the valve stand or sleeve 1) have openings in line with each other, through which is extended avalvestem, b having at its top the usual handle, b.

As herein shown, the valve-stem b has secured to its lower end by a screw, d*, a valveplate, B, herein shown as composed of two single valve plates or disks, d d, joined to gether by screws (1*, the said screw d being bottomed to permit the said valve-plate to turn as on a pivot or swivel, to accommodate itself to any irregularities in the-surface of the seat against which it bears or acts.

The part (I of the valve-plate B, as shown,

is beveled at e to fit the beveled seat e of the valve case or shell when the said valve is 550 closed, as indicated by dotted lines in the drawings, the back of the part dbeing at such time flush with the top or upper surface of the said valveseat e.

The part 01 of the valve-plate B-it constitoting the upper half thereof-is herein shown as beveled in an ,opposite direction to the bevel of the part (1, the beveled portion of the said part d cooperating with a beveled seat, as 6 on the valve stand or sleeve b" when the valve is open.

The valve-stem b has a threaded collar, f, located within the valve stand or sleeve b, the said threaded collar being herein shown asbrought intoengagement with a threaded portion of the said valve stand or sleeve when it is desired to close the valve, the said collar being so positioned on the valve-stem as to engage the said threaded portion when the part (1 of the valve-plate is seated, as shown in dotted lines in the drawings, the said threaded portion serving to maintain the valve-plate seated until the collarf is positively released from engagement therewith.

The valve-stem Z) within the valve stand or sleeve is herein shown as encircled by a spiral spring, f one end of which rests upon the lower part of the valve stand or sleeve, while the other end bears against the collarf. The springf acts to bring the part (1 of the valveplate B immediately to its seat as shown by full lines in the drawings, as soon as the collarf is disengaged from the threaded portion of the valve stand or sleeve to open the valve.

In the operation of my improved valve, as with a steam-radiator, the said valve will be either completely opened, as shown in full lines, or entirely closed, as shown in dotted lines. XVhen the valve is closed, the back or upper portion of the part (1 of the valve plate is flush with top or upper surface of its seat 6, thus permitting any water resulting from condensation of steam and which might otherwise lodge in the valve to tlow into the pipe (1 thereby leaving said valve free from water. \Vhen both the feed and exhaust valves of the radiator are opened, the steam passes into the said radiator through the pipe a, forming the outlet for the valve-case and the inlet for the radiator, as indicated by arrows in the drawin gs, while the water in the radiator would flow therefrom through the exhaust-valve in a direction reverse to that indicated by the said arrows. When the valve B is opened, the spring 5 f" immediately brings the upper part, d, of

the valve-plate B to its seat 6, thereby preventing escape of steam through the valve stand or sleeve 1), thus enabling the usual stuffing-box to be dispensed with.

The valve-plate B is herein shown as composed of two independent disks or parts, d d, united by screws; but it is evident the said valve-plate might be cast in one piece. The valve-plate is shown as beveled on both faces to fit beveled seats; but I do not desire to limit myself to the particular form shown, as the same might be fiat or of other desired or suitable shape, or the said valve might be a single disk.

The valve case herein shown hasits inlet and outlet ports or passages set at a right angle to each other; but I do not desire to limit my invention to the particular form of valve case shown, as any other convenient form or arrangement of ports or passages might be used equally wellsuch, for instance, as in a straight-way valve such as shown in Fig. 2.

I claim-- 1. In a steam-valve, a valve case or shell, a valve stand or sleeve provided with a valveseat, a valve stem extended through said stand or sleeve, and a valve-plate attached to said stem, combined with aspring to bring one face of the said valve-plate immediately to its seat when the valve is open, as and for the purpose set forth.

2. In a steam-valve, a valve-case, a valve stand or sleeve provided with a valve-seat, a valve-stem extended through said stand or sleeve, and a valve-plate attached to said stem, combined with means, substantially as described, to maintain one face of the valve-plate seated when the valve is closed, and with means, substantially as described, to bring the other face of said valveplate immediately to its seat when the valve is open, substantially as set forth.

3. In a steanrvalve, a valve-case, a valve stand or sleeve provided with a valveseat and having threads on its inner surface, a valvestem extended through said stand or sleeve,and a valveplate attached to said stem, combined with a threaded collar 011 said valve-stem to engage the threads of the valve stand or sleeve, and thereby maintain one face of the valveplate seated when the valve is closed, and with a spring to bring the other face of said valveplate immediately to its seat when the valve is open, substantially as described.

4.. In a steam-valve, a valve case or shell, a valve stand or sleeve provided with threads on its inner surface,a valve-stem extended through said stand or sleeve, and a valve-plate attached to said stem, combined with a threaded collar on the valve-stem to engage the threads on the valve-stand to maintain the valve-plate seated when the valve is closed, substantially as described.

In testimony whereofl have signed my name to this specification in the presence of two subscribing witnesses.

GEO. O. TITCOMB.

\Vitncsses:

F. CUTTER, J AS. I1. CHURCHILL. 

